<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
    </head>
    <body>
        hello world, flask!
        <a href="/">home</a><br />
        <a href="/list">list</a><br />
        <a href="/init">init</a><br />
        <a href="/gen/index">gen index</a><br />
    </body>
</html>